Kael a



106: COMPOSITIONS,

COATING 0R PLASTIC.

UNITED STATES EXAMlNER PATENT OFFICE.

KARL A. HOHENSTEIN, OF BROOKLYN, NEW YORK.

FIRE-PROOF COMPOUND.

SPECIFIGATIQN formingpart of Letters Patent No. 289,262, dated November 2'7, 1883.

Application filed July 12, 1883. (No specimens.)

To all whom it may concern:

Be it knqwn that I, KARL A. HOHENSTEIN, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented new and useful Improvements in Fire-Proof Cd'inpounds, of which the following is a specification.

This invention is a fire-proof compound consisting of l' pm nd chalk these ingredients being combined in about e fillowing proportions, 'viz: silicate of soda, one gallon; milk three gallons; chaTl"" three pounds. When the ingredients name have been thoroughly mixed, the compound is applied to the selected surface in form of a coat, as by a brush, and by its means such surface is thoroughly protected against fire.

My compound can be used to great advantage for coating the inner surfaces of fermenting-tuns, in place of the varnish or pitch usually employed, and other wooden surfaces, as well as iron and other hard surfaces, and, if desired, a light coat of chloride of calcium may be applied after the previous coa as dried, to produce a vitreous surface. The 25 milk used may be either sweetor sour andinstead of chalk I may use china-cla while the whole may, if desired, be colore with a suitable i -ment.

I am aware that in making paint it has been proposed to use skimmed milk, newly-slaked li a u 2 i l, Spams whit and a coloring su stance or pigment, and such, therefore, I do not wish to be understood as claiming; but

What I claim as new. and desire to secure by Letters Patent, is

The within-described fire-proof compound, consisting of silicate of soda, milk, and chalk, mixed together in about the proportions set forth.

In testimony whereof Ihave hereunto set my hand in the presence of two subscribing witnesses.

KARL A. HOHENSTEIN.

Witnesses:

W. HAUFF, EDWARD BILL. 

